feat: add Crush MCP server configurations and validate multiple MCP servers

- Add crush.json with comprehensive MCP configurations for Crush AI assistant
- Configure stdio-based MCPs: penpot, context7, docker, drawio, redmine
- Configure HTTP-based MCP: nextcloud (port 8083 with SSE endpoint)
- Fix mcp-redmine Dockerfile with correct python module entrypoint
- Fix nextcloud-mcp Dockerfile to handle .dockerignore blocking observability
- Fix drawio-mcp Dockerfile to use pnpm and correct build directory
- Update docker-compose.yml with proper MCP server configurations
- Add environment variable configuration for MCPs requiring external services
- Create MCP validation script to test servers with protocol messages
- Update STATUS.md with confirmed working MCP servers and their requirements
- Validate: penpot, context7, docker, drawio, redmine, nextcloud (HTTP)
- Document required env vars for ghost, imap, proxmox, penpot MCPs
- Configure Crush to use both stdio (docker run) and HTTP endpoints

build-nextcloud-mcp.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+# Build script for nextcloud-mcp that handles .dockerignore issue
+
+set -e
+
+NEXTCLOUD_DIR="vendor/nextcloud-mcp-server"
+DOCKERIGNORE_FILE="$NEXTCLOUD_DIR/.dockerignore"
+BACKUP_FILE="$NEXTCLOUD_DIR/.dockerignore.backup"
+
+echo "Backing up .dockerignore..."
+if [ -f "$DOCKERIGNORE_FILE" ]; then
+    cp "$DOCKERIGNORE_FILE" "$BACKUP_FILE"
+    rm "$DOCKERIGNORE_FILE"
+fi
+
+echo "Building nextcloud-mcp..."
+docker compose build nextcloud-mcp
+
+echo "Restoring .dockerignore..."
+if [ -f "$BACKUP_FILE" ]; then
+    mv "$BACKUP_FILE" "$DOCKERIGNORE_FILE"
+fi
+
+echo "Done!"